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If the planes 3x-2y+2z+17=0 and 4x+3y-k...

If the planes `3x-2y+2z+17=0 and 4x+3y-kz=25`
are mutually perpendicular , then `k=`

A

3

B

`-3`

C

9

D

`-6`

Text Solution

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The correct Answer is:
A
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